Device for preventing creep in railway rails



Aug. 19, 1930. a z, THQMKA 1,773,156

DEVIGE'FOR PREVENTING CREEP IN RAILWAY RAILS Filed April 26, 1928 lnvenior: zolhin Tho Patented Aug. 19, 1930 UNITED} STATES,.,PATENT O I E zoLTAN THOMKA, or BunArns'r, HUNGARY DEVICE non PREVENTING "canny IN RAILWAY nAiLs Application filed April 26, 1928, Serial n 272,939, and in Hung ry m 11,1927.

it is generally known that the rails situated 7 in the track on the superstructure of railways,

have a considerable tendency to creep under brakes are applied.

causing unpleasant lateral swaying of the vehicles. ltailway companies have endeavouredtopreventrail creep by means of numerous devlces, on account of the dangers 1D:

volved. The devices hitherto employed share the common defect of needing continuous inspection and maintenance, and of being expensive, so that, in consequence, can

only be used in limited number on a section of track, the result being that the measures ofpreventing creep are imperfect.

The present inventlon completely obviates.

the aforesaid defects of the existing devices for preventing rail creep, since the device constituting the invention requires no upkeepj'. and, owing to its low cost, can be used on all sleepers; apart from the fact that it is strong- 7 er than the existing and many times more expensive devices.

Two embodiments of the invention are illustrated in the accompanying drawing.

Figures 1 and 2 show the simple device for preventing rail creep, said device consisting of the flat piece of iron strip 7), which embraces the foot of the rail a as shown in the drawing.

' Figure 1 shows a cross section of the rail a,

the simple device I) for preventing creep, disposed thereon, and an end view of the tie plate 0 disposed underneath the rail.

Figure 2 shows the rail (1, with the simple device b for preventing creep, in end section, said device bearing against the tie plate 0.

The iron strip 6 bent round the foot of the rail is applied to the rail foot whilered hot and is hammered on to same, so that, in consequence of the contraction occurring on cooling, the strip grips the rail foot with considerable force.

Thestrips attached to the rail foot are dis tributed at such intervals along the rail that they come exactly into position adjacent to the iron tie plates 0 secured on the sleepers j.

transmitted to the sleeper'j. prevented from shifting by the ballast of the bears against the iron tie plate 0', and thereby prevents the rail from. moving in the one di Since the'tie plate is secured to the rection. sleeper by means of the rail spikes or bolts 5, the pressureset up'by the creep ofthe railis The sleeper is permanent way. I L

The adhesion of the iron strip hammered on to the rail foot may also be increased b making one or two small depressions k, with a, pointed hammer at the two edges of the rail foot over which the iron strip is bent. T he redhot strip is hammered into these deprcssions and forms,"when cold,fteeth which engage therein and oifer' a'gre 'a'tly increased resistance to movements in the longitudinal dlrect on;

[The "existing devices" (resting"on the iron t e plate) .for preventing railcreep, exhibit the defecttha't, owingto the heavy lateral pressure, the tie plate bends the rail spikes; This cannot occur with the present invention since, owing to. its low cost, the device constituting the invention can be employed on every sleeper or tie plate, with the re} sult that the pressure is distributed among them, in contrast to the existing device, in which the pressure is applied to only 2 or 3 sleepers.

What I claim as my invention and desire to secure by Letters Patent is 1. An anti-creeping device for railway rails mounted on 'tie'plates, comprising a. plate disposed under the rail and bent over on itself along opposite sides to embrace the rail base, the edges-of the base coming inside the last named plate being irregular. to permit the surface of the bent over sides to conform to the irregularities during the operation of being bent about said base.

2. The methodof anchoring an anti-creep ing device to the base flange of a rail, which consists in forming depressions in the opposite sides of the base flange, thereafter placing a plate beneath the base flange with sides of the plate projecting be end the sides of the flange and bending t e rojecting sides of the plate over the notche edges of the flange to cause the material of the plate to enter the notches.

3. 'l heinethod of anchoring an anti-creepe we i e's? eew e which consists in eating a late to red heat, there after bending the si es of said piate'about" lo the base flan e, and mmntpagtigg plate by coo in to lncrease its gripping power on the 4. The herein described method of anchoring an enti r'eepingl'ideviee t0 the base 1* Qt a mil vyhi c consists in placing a 4 aibefleath, tgl'elbasel flange with the sides 0 *etingteyona the superimposed sides of 4,. fifii flange, andthereafter bending the ff p'eetin Sips ff'the plate over the sides mj' 5e t crj r-gythe plate at the bends t, nfqstmfime e p ne contact with t 1mm: angei "$6,; Elie been; i tib met od n hor- 2i g deqice to the base a 'j'ailflre; giglnpon atie ilate, which consists placing eg'plane plate eneath the ,We flang: witl .o1 1 e end abutting the adte i of thetiiplate, and thereafter I; 1 1% and gt he plate about the 4e b a t i f fi. anti-creeping device for railway j e. P ne pl disposed F ge "of the rail and bent 5 f th rail base to in- I gfip the lette i P a e being su sequent'to the "bending operation" W t a ,fit betw e c l e g We: I a f x my i a u PJeTAN THOMKA 

